- This monster has a crest on its helmet resembling a Roman soldier. The Romans built great war machines that were powered by gears.
- As one of the original three "Ancient Gear" monsters (along with "Soldier" and "Beast") its ATK is equal to its DEF.
- This monster is based on a golem, an animated guardian made from earthen materials.
- In the anime, this card is so extremely rare that by the time Yu-Gi-Oh! 5D's is set in, the card hadn't been seen in living memory until it appeared in the episode "Lessons Learned".
- Its rarity is such that it is often referred as a "legendary card", which is also attributed to being considered overall as a very powerful card.
- This monster appears in the artworks of "Stonehenge Shield", "Ancient Gear Scrap Fusion", "Ancient Gear Catapult", "Ancient Gear Inspection", and "Cross-Dimensional Duel".
- Some prints of this card in the Spanish TCG show its name as "Golem de Mecanismo Antiguo", while some show it as "Gólem de Mecanismo Antiguo".
Community content is available under CC-BY-SA unless otherwise noted.